This involved observing a young girl washing herself for his own sexual gratification.

Finn also admitted a charge of common assault against the same girl, who can’t be identified.

The offences happened between September 30 and November 20 last year.

He denied two other charges, sexual assault of a child under 13 and causing or inciting a child under 13 to engage in sexual activity.

Prosecutor Sarah Mallett said those pleas were acceptable and these two counts were left on file. No details of the prosecution case were given to yesterday’s hearing.

Defence counsel Dan Cordey said the court would benefit from knowing more about the defendant and asked for a pre-sentence report.

The case was adjourned until December 14.

Finn was told he must sign the sex offenders register.

Judge Peter Armstrong granted him conditional bail until the next hearing.

But he said the granting of bail must not be taken as an indication of the likely sentence.

Finn’s bail includes conditions of residence and not contacting prosecution witnesses.

He must not be involved in any instruction sports with under-18s, is not to go within 200 yards of the karate clubs in Teesside and must not attend sporting events at which children under 18 would be present.

Finn was warned he would be arrested if he breached any of the conditions.